"use strict";
/**
* Creates a token that can be used in a DI Provider.
*
* ### Example ([live demo](http://plnkr.co/edit/Ys9ezXpj2Mnoy3Uc8KBp?p=preview))
*
* ```typescript
* var t = new OpaqueToken("value");
*
* var injector = Injector.resolveAndCreate([
*   provide(t, {useValue: "bindingValue"})
* ]);
*
* expect(injector.get(t)).toEqual("bindingValue");
* ```
*
* Using an `OpaqueToken` is preferable to using strings as tokens because of possible collisions
* caused by multiple providers using the same string as two different tokens.
*
* Using an `OpaqueToken` is preferable to using an `Object` as tokens because it provides better
* error messages.
* @ts2dart_const
*/
var OpaqueToken = (function () {
    function OpaqueToken(_desc) {
        this._desc = _desc;
    }
    OpaqueToken.prototype.toString = function () { return "Token " + this._desc; };
    return OpaqueToken;
}());
exports.OpaqueToken = OpaqueToken;
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